# SDR ASAA2016060716992

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2016
- Submitted: June 10, 2016
- Operation: Air carrier
- Aircraft: [N224AK](https://openairdocs.org/aircraft/N224AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 62680
- Aircraft time: 500 hours, 164 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Gearbox
- Part number: 38007021
- Part serial: P11264
- Condition: Failed
- Location: Apu
- Part time: 136 hours, 308 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016060716992

## Discrepancy

APU FAULT AT GATE.  ACFT GROUNDED.  REMOVED APU SN:P-11264, PN:3800702-1, REF AMM 49-11-00-000-803. INSTALLED APU SN:P-7045, PN:3800702-1, REF AMM 49-11-00-400-803.

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